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Farming Action

John WilliamsRosemary A. HookHester Gascoigne

其他書名	Catchment Reaction : the Effects of Dryland Farming on the Natural Environment
出版	CSIRO Publishing, 1998
主題	Science / Environmental ScienceTechnology & Engineering / Agriculture / GeneralTechnology & Engineering / Agriculture / IrrigationTechnology & Engineering / Agriculture / Sustainable Agriculture
ISBN	06430601119780643060111
URL	http://books.google.com.hk/books?id=YAhIAAAAYAAJ&hl=&source=gbs_api

註釋Dryland farming is a major export earner for many temperate-zone countries - southern Europe, Africa, Asia and the Americas. Yet it degrades a country's natural resources. Effects are not restricted to the land - changes in water quality can reduce the potential uses of water and bring about catastrophic changes in both freshwater and coastal ecosystems.